Singer Geri Halliwell poses as she arrives to attend the "American Idol, The Idol Gives Back" show and fundraising event in Hollywood, California, April 6, 2008.[Agencies]

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Former Spice Girl Geri Halliwell says she loves toilet jokes, accents and discussing 'poos and wees'.

Former Spice Girl Geri Halliwell says she loves toilet humour and doing accents.

The singer, who is now a children’s author, admits her mischievous side leads her to play pranks on her friends.

She said: “A lot of people have said that I’ve got a voice that speaks to children. I think I’ve got a cultural naivety to me. I’m childish. I have a huge toilet humour - I love talking about poo and wee.

“I also like doing accents. One of my friends works in hotel reservations and I’ll ring her up and complain about the suite - sometimes I get her.”

Geri also said her childish side has also rubbed off on her two-year-old daughter, Bluebell.

She added to Britain's The Observer newspaper: "My daughter Bluebell is a cheeky monkey. What I like about her is she is really confident. She says to my mum - 'That’s not lilac, that’s purple'."

Geri recently claimed she has "hung up her hotpants" and finished her career as a solo artist, to concentrate on other projects, particularly her writing.

Her first children’s book Ugenia Lavender and the Burning Pants is available now.